Letter-sheet and envelope combined



(No Model ')J; N. PROES'OHEL & E. MQOL'INTOGK.

LETTER SHEET AND ENVELOPE GOMBINED.

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Patented Dec. 6, 1887.

. sheet and envelope, and will be UNITED STATES PATENT OFFICE.

JULIUS N. PROESOHEL AND EMORY MOOLINTOOK, OF MILWAUKEE,

WISCONSIN.

LETTER-SHEET AND ENVELOPE COMBINED.

SPECIFICATION forming part of Letters Patent No. 374,555, dated December 6, 1887,

Application filed December 30, 1882. Serial No. 80,540. (No model.)

To all whom it may-concern.-

Be it known that we, J ULIUs N. PROESOHEL and EMORY MOOLINTOOK, of Milwaukee, in the county of Milwaukee, and in the State of Wisconsin, have invented certain new and useful Improvements in Letter-Sheet and Envelope Combined, and we do hereby declare that the following is a full, clear, and exact description thereof.

Our invention consists in a combined letterfully described hereinafter.

In the drawings, Fignrel is an inside view of our invention as it is furnished to consumers. Fig. 2 is a perspective view of the same after it has been folded and is ready for sealing, and Fig. 3 is an elevation of our device after it has been folded and sealed.

.A is the upper and A the lower half of the sheet upon which the letter is written.

B is a sealing-flap, and O a covering-flap for covering the edge of the lower half after it has been folded upon the upper half.

a a are safety-flaps, and b b notches for indicating the points at which the folds are to be made. The notch 12 is situated midway between the upper and lower edges of the sheet, while the lines 1, 2, and 3 are only used in the drawings for indicating the number of folds that are made in the sheet when it is ready for sealing, as they will not appear on the device itself when -'put upon the market.

The sheets are stamped or cut out by the manufacturer in perfectly plain blanks without lines other than those usually upon writing-paper and are preferably furnished to the trade in blocks, but of course may be supplied in single sheets, if desired.

The letter is written upon the sheet, and

edge coming flush with line 2, which latter ex tends straight across the sheet from notch b. The covering-flap G is then folded over the edge of the lower half of sheet A, and both halves, together with flap 0, are folded on line 3, thus bringing the side edges over on a line with the base of flap B, which flap is suitably gummed. Now when the paper is thus folded the safety-flaps will be side by side at right angles to the flap B, and to close the letter it will only be necessary to moisten the gummedside of flap B and fold it over upon the edge of the lower half of the sheet, and with it the safety-flaps a a, when it will secure] y cement the safety-flaps down upon the edge of the sheet, so that it will be impossible to get at the contents of the letter without breaking them.

The sheet may be enlarged, if desired, in any direction where there is no flap, the extension folding over the page described, and the whole then folded on the lines hereinbe fore indicated. i

What we claim as our invention, and desire to secure by Letters Patent, is-

'then the lower half isfolded upon line 1, its o The combination, with sheet A, of gummed In testimony that we claim the foregoing we have hereunto set our hands, on this 12th day of December, 1882, in the presence of two witnesses.

JULIUS N. PROESCHEL. EMORY McOLINTOOK.

Witnesses:

C. H. TRUMP, S. S. STOUT. 

